The new Zombies mode in Modern Warfare 3 is almost like its own game‚ with an armada of enemies and weapons that are unique to it‚ that you will not find anywhere else in the game. With a lot of these special weapons‚ as well‚ you will need to do specific things in order to get your hands on them. One such weapon is the Aether Blade‚ which is an otherworldy knife that you can use much like the other knives in the game‚ though with a handful of special abilities.